The online hacker collective Anonymous dumped a trove of personal information online belonging to alleged members of the Ku Klux Klan.

The “hacktivist” group claims to have taken control this week of the @KuKluxKlanUSA Twitter account in an ongoing dispute between the two groups over Wilson’s fatal shooting of an unarmed black teen and the resulting protests in Ferguson, Missouri.

The group also threatened in a new video to shut down government websites in Missouri to protest the grand jury decision not to indict Officer Darren Wilson in the death of 18-year-old Michael Brown.

“We find it disturbing that you, the grand jury, have chose this path as everyone will not choose to stand calm and let you choose to let him walk free,” the group said in a video posted online Tuesday. “As you’ve seen all the riots and businesses, police cars, etc., being burned down while Anonymous shall target any Missouri government or bank sites now, so you better increase your security because we’re here and we’re not going to stand by and watch you let this man walk free.”

A tweet posted Tuesday evening to that account included links to two Pastebin documents that contained names, addresses, Social Security numbers, phone numbers, social media account information, credit card and banking information, and other detailed personal data for Frank Ancona, grand wizard of the Traditionalist American Knights of the Ku Klux Klan, and his alleged associates.

“We’ll just leave this here,” the post said, along with links to two documents.

Ancona’s group distributed leaflets warning they would use “lethal force” against protesters after the grand jury decision, and Anonymous warned Klan members and police they would retaliate if protesters’ rights were violated.

Anonymous claimed to have hacked Ancona’s social media and PayPal accounts and disconnected his phone and electricity services.

The pastor of a church where Michael Brown’s father was baptized over the weekend said he believes white supremacists, not protesters, burned down Flood Christian Church overnight Monday.

“I’m very vocal in regards to the Michael Brown case,” said Rev. Carlton Lee, who has taken part in in rallies and press conferences with Michael Brown Sr.

Members of the Anonymous offshoot NOWsec claimed last week that a source within the St. Louis County Police Department had told them Ferguson-area law enforcement officers were affiliated with the “Ghoul Squad,” which the activists described as supportive of the local KKK chapter.

One of the activists claimed NOWsec had proof of a link but could not publish the evidence because it could endanger the life of their source.

The group also reportedly dumped Officer Darren Wilson’s personal information online, but the credit card numbers and other elements did not appear to be valid.